m***s
发帖数: 1094 | 1 手上有这样一个函数：
（a+bx)*c^y=z
现在x,y,z是已知矢量，有可能用R把a,b,c算出来吗？谢了 | f*******e
发帖数: 9 | | m***s
发帖数: 1094 | 3
sorry it was a typo, now corrected
【在 f*******e 的大作中提到】
: where is c?
| g********5
发帖数: 62 | 4 linear model
for help,type "?lm" in R | m***s
发帖数: 1094 | 5
I don't think this is a linear model, （a+bx)*c^y=z
even if you take the log, it is still not going to be linear
【在 g********5 的大作中提到】
: linear model
: for help,type "?lm" in R
| g********5
发帖数: 62 | 6 you are right, should be nonlinear model.
Just wrote an opposite answer.
type "?nls" in R |
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